2011/03/31 by S. P. Cockburn, D. Gallucci, Donatello Gallucci +1 · 1 citation
Physics and Astronomy · #Bose gas #Bose–Einstein condensate #Cold Atom Physics and Bose-Einstein Condensates #Excited state #Gross–Pitaevskii equation #Ideal (ethics) #Ideal gas #Physics #Quantum many-body systems #Quantum mechanics #Statistical physics #Strong Light-Matter Interactions #cond-mat.quant-gas #quant-ph
paper · pdf · doi:10.1103/physreva.84.023613
10 pages, 5 figures; updated figures with experimental data
arxiv created 2011/04/06 · openalex publication_date 2011/08/08 · arxiv updated 2015/05/27 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The stochastic Gross-Pitaevskii equation is shown to be an excellent model for quasi-one-dimensional Bose gas experiments, accurately reproducing the in situ density profiles recently obtained in the experiments of Trebbia et al. [Phys. Rev. Lett. 97, 250403 (2006)] and van Amerongen et al. [Phys. Rev. Lett. 100, 090402 (2008)] and the density fluctuation data reported by Armijo et al. [Phys. Rev. Lett. 105, 230402 (2010)]. To facilitate such agreement, we propose and implement a quasi-one-dimensional extension to the one-dimensional stochastic Gross-Pitaevskii equation for the low-energy, axial modes, while atoms in excited transverse modes are treated as independent ideal Bose gases.